Which of the Following Indicators Would Be Most Suitable for the Titration

question 5

Multiple Choice

Which of the following indicators would be most suitable for the titration of 0.10 M lactic acid with 0.10 M KOH(aq) ? For lactic acid,pK_a = 3.08.

• A)Methyl orange (pK_In = 3.4)
• B)Thymol blue (pK_In = 1.7)
• C)Alizarin yellow (pK_In = 11.2)
• D)Bromophenol blue (pK_In = 3.9)
• E)Phenol red (pK_In = 7.9)

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Definitions:

P/E Ratio

The ratio of a company's share price to its earnings per share, indicating the value the market places on its earnings.

Earnings Retention Ratio

The proportion of net earnings not paid out as dividends but retained by the company to be reinvested in its core business, or to pay debt.

Dividend Payout Ratio

The percentage of net income a firm pays to its shareholders as dividends.

P/E Ratios

The Price-to-Earnings Ratio, a valuation metric comparing a company's current share price to its per-share earnings.